Pershing Square is trading 5.87% higher in pre-market at $58.09 on October 6, with no fresh company-specific announcement clearly explaining the move. - Its $0.103 quarterly dividend was announced on October 2, before this session. - Broader markets are firmer pre-market: the Nasdaq Composite is up 0.57% and the Dow is up 0.68%. This may be supportive but does not establish a direct cause.